Two Photon Reactions at High Energies
High Energy Physics - Phenomenology
2008-11-26 v2 High Energy Physics - Experiment
Abstract
Cross sections for the reactions gamma^(*) gamma^(*) --> hadrons and gamma^(*) gamma^(*) --> 2 vector mesons are calculated as functions of energy (sqrt(s) > 20 GeV) and photon virtualities. Good agreement with experiment is obtained for the total hadronic cross section and, after allowing for a valence-quark contribution from the hadronic part of the photon, with the photon structure function at small x. The cross section for vector meson production are shown to be experimentally accessible for moderate values of Q^2. This is sufficient to probe the nature of the hard pomeron which has recently been proposed.
Keywords
Cite
@article{arxiv.hep-ph/9810206,
title = {Two Photon Reactions at High Energies},
author = {A. Donnachie and H. G. Dosch and Michael Rueter},
journal= {arXiv preprint arXiv:hep-ph/9810206},
year = {2008}
}
Comments
some changes in style, physics unchanged, final version to appear in Phys.Rev.D, LaTeX2e, graphicx package, 15 eps-figures, 15pp